Which leads are placed in the third column of the standard layout?

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Multiple Choice

Which leads are placed in the third column of the standard layout?

In this standard three-column ECG layout, the precordial (chest) leads are arranged from right to left across the columns. The rightmost column holds the initial chest leads, which are V1, V2, and V3. So those three leads sit in the third column on the page. The other groups—V4-V6, and the limb/augmented limb leads (I, II, III, aVR, aVL, aVF)—appear in the other columns or sections, not in that rightmost column. This layout helps you quickly identify where the chest leads are located on a single-page tracing.

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